WO2022237679A1

WO2022237679A1 - Transmission method and apparatus, device, and readable storage medium

Info

Publication number: WO2022237679A1
Application number: PCT/CN2022/091438
Authority: WO
Inventors: 姜蕾; 王理惠
Original assignee: 维沃移动通信有限公司
Priority date: 2021-05-08
Filing date: 2022-05-07
Publication date: 2022-11-17
Also published as: CN115314174A

Abstract

The present application discloses a transmission method and apparatus, a device, and a readable storage medium. The transmission method comprises: a terminal determines whether to perform uplink transmission during a first channel occupancy time or during a second channel occupancy time; and the terminal sends indication information to a network side device, the indication information being used for indicating whether the terminal performs uplink transmission during the first channel occupancy time, or the indication information being used for indicating whether the terminal performs uplink transmission during the second channel occupancy time, wherein the first channel occupancy time is a channel occupancy time initiated by the terminal, and the second channel occupancy time is a channel occupancy time initiated by the network side device.

Description

Transmission method, device, equipment and readable storage medium

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202110502313.7 filed in China on May 08, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of communication, and in particular relates to a transmission method, device, equipment and readable storage medium.

Background technique

Referring to Figure 1, in the case of a frame based equipment (Frame Based Equipment, FBE), the resources of the Physical Uplink Shared Channel (PUSCH) 1 and the terminal fixed frame cycle (Fixed When the starting positions of Frame Period (FFP) are aligned, when CG PUSCH1 is transmitted in the base station initiated (gNB-initiated) Channel Occupancy Time (Channel Occupancy Time, COT), new data CG PUSCH2 comes again. However, CG PUSCH2 is not within the fixed frame period (Fixed Frame Period, FFP) of the base station, and needs to be transmitted during the UE-initiated COT. However, the terminal does not initiate the channel occupation time at CG PUSCH1, so that CG PUSCH2 cannot transmission.

Contents of the invention

Embodiments of the present application provide a transmission method, device, device, and readable storage medium, which can solve the problem of how to improve resource utilization.

In the first aspect, a transmission method is provided, including:

The terminal determines whether to perform uplink transmission during the first channel occupation time or whether to perform uplink transmission during the second channel occupation time;

The terminal sends indication information to the network side device, where the indication information is used to indicate whether the terminal performs uplink transmission during the first channel occupation time, or the indication information is used to indicate whether the terminal performs uplink transmission during the first channel occupation time. Two channels occupy time for uplink transmission;

Wherein, the first channel occupation time is the channel occupation time initiated by the terminal, and the second channel occupation time is the channel occupation time initiated by the network side device.

In a second aspect, a transmission device is provided, including:

A determining module, configured to determine whether to perform uplink transmission during the first channel occupation time or whether to perform uplink transmission during the second channel occupation time;

A sending module, configured to send indication information to a network side device, the indication information indicating whether the terminal performs uplink transmission during the occupation time of the first channel, or the indication information indicating whether the terminal is in the second channel Take up time for uplink transmission;

In a third aspect, a terminal is provided, including: a processor, a memory, and a program stored in the memory and operable on the processor, and when the program is executed by the processor, the terminal described in the first aspect can be implemented. steps of the method described above.

A fourth aspect provides a terminal, including a processor and a communication interface, wherein the processor is configured to implement the steps of the method described in the first aspect during execution.

According to a fifth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

In a sixth aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the processing as described in the first aspect steps of the method.

In a seventh aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the processing described in the first aspect Methods.

An eighth aspect provides a terminal configured to execute the steps of the processing method described in the first aspect.

In this embodiment of the application, the terminal can independently decide whether to perform uplink transmission during the first channel occupation time, or decide whether to perform uplink transmission during the second channel occupation time, so as to improve resource utilization.

Description of drawings

FIG. 1 is a schematic diagram of configuring authorized uplink transmission;

Fig. 2 is a schematic diagram of initiating node operation;

FIG. 3 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application;

FIG. 4 is one of the schematic diagrams of the transmission method of the embodiment of the present application;

Fig. 5 is the second schematic diagram of the transmission method of the embodiment of the present application;

FIG. 6 is a schematic diagram of a transmission device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a terminal in an embodiment of the present application.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specified order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and" in the specification and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th Generation (6th Generation , 6G) communication system.

In order to facilitate the understanding of the embodiments of this application, the following technical points are introduced first:

In future communication systems, shared spectrum such as unlicensed frequency band (unlicensed band) can be used as a supplement to licensed frequency band (licensed band) to help operators expand service capacity. In order to be consistent with NR deployment and maximize NR-based unlicensed access, the unlicensed frequency band can work in the 5GHz, 37GHz and 60GHz frequency bands. Since the unlicensed frequency band is shared by multiple technologies (RATs), such as Wireless Fidelity (Wireless Fidelity, WiFi), radar, Long Term Evolution (LTE)-Licensed-Assisted Access (LAA), etc. , so in some countries or regions, the use of unlicensed frequency bands must comply with regulations (regulation) to ensure that all devices can use the resources fairly, such as listen before talk (listen before talk, LBT), the maximum channel occupancy time ( maximum channel occupancy time, MCOT) and other rules. When the transmission node needs to send information, it needs to do LBT first, and perform power detection (energy detection, ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered to be idle (idle), and the transmission node can to send. Otherwise, it is considered that the channel is busy, and the transmission node cannot send. The transmission node may be a base station, a terminal (such as a user terminal (User Equipment, UE)), a wireless fidelity (Wireless Fidelity, WiFi) wireless access point (Access Point, AP) and the like. After the transmission node starts transmission, the channel occupancy time (Channel Occupancy Time, COT) cannot exceed MCOT.

(1) Frame Based Equipment (FBE) network operation:

FBE means that the sending/receiving timing of the device adopts a periodic structure, and its period is FFP.

The FBE node uses the LBT-based channel access mechanism to occupy the channel. The node that initiates a transmission sequence that includes one or more consecutive transmissions is called the initiating device, and the other nodes are called the responding device. FBE nodes can be initiating nodes, responding nodes, or support both node functions.

See Figure 2 for an example of the operation of the initiating node. Its operating requirements include:

(1) The fixed frame period value set supported by the node is declared by the device manufacturer, and each value is required to be within the range of 1 to 10 milliseconds (ms). Transmission can only be started at the beginning of a Fixed Frame Period. A node can change its currently applied Fixed Frame Period, but its frequency cannot be higher than 200ms once.

(2) Before starting the transmission at the beginning of a Fixed Frame Period, the initiating node will perform Clear Channel Assessment (CCA). If it is judged to be idle, it can send it immediately, otherwise it will be sent during the next Fixed Frame Period It is not allowed to send within (except for Short Control Signaling Transmissions (Short Control Signaling Transmissions) stipulated by regulatory requirements). That is to say, the initiating node needs to do a one-shot LBT before transmission.

(3) Within a Fixed Frame Period that has already started sending, the total time that the corresponding initiating node can transmit without re-estimating the availability of the channel is defined as COT. The initiating node can transmit multiple times on a given channel within the COT without performing additional CCA, as long as the time interval between adjacent transmissions of these transmissions does not exceed 16 microseconds (μs). If the time interval between adjacent transmissions in the COT exceeds 16 μs, the initiating node needs to perform additional CCA before continuing to transmit, and only continue to transmit when the CCA judges that the channel is idle. All time intervals between adjacent transmissions are counted towards the COT duration.

(4) The initiating node may authorize one or more associated responding nodes to use the specified channel within a certain period of time within the COT for transmission.

(5) The COT cannot be longer than 95% of the Fixed Frame Period, and there is an idle period (Idle Period) immediately after the COT, and the idle period lasts until the start of the next Fixed Frame Period, so that the length of the idle period is at least Fixed 5% of Frame Period, and the minimum value is 100μs.

(6) After a certain node correctly receives the data packet directed to it, it can directly transmit the management and control frame (such as an acknowledgment (Acknowledge, ACK) frame) corresponding to the data packet on the designated channel without performing CCA. This node needs to ensure that these continuously transmitted frames cannot exceed the maximum COT duration mentioned above.

After the responding node receives an authorization from an initiating node to use the specified channel within a certain period of time, it will perform the following operations:

If the responding node initiates a transmission at most 16 μs after the end of the last transmission indicated by the initiating node, it does not need to perform CCA before transmission; otherwise, it performs CCA before the start of the authorized transmission period, and discards it if the channel is judged to be busy. This authorization, otherwise, can start transmission on the designated channel, occupying at most the remaining part of the COT in the current Fixed Frame Period, and can start multiple transmissions within the time range of the remaining part, as long as the time interval between adjacent transmissions does not exceed 16μs Yes, this authorization is discarded after the transfer is complete.

(2) FBE in version 16 (Release-16, Rel-16):

In the Rel-16 unlicensed band new air interface (NR-Unlicensed, NR-U), only the base station (next Generation Node B, gNB) can initiate (initiate) COT, if the UE performs uplink (Uplink, UL) transmission, it needs Share the COT of gNB. That is to say, before the uplink transmission, the UE needs to detect whether the gNB initiates the COT. If so, the uplink transmission is performed within the gNB's COT, and the transmission duration cannot exceed the length of the gNB's COT. Wherein, the UE can determine that the gNB initiates the COT by detecting any downlink signal. Here, the COT of gNB is the COT initiated by gNB, that is, gNB-initiated COT.

(3) FBE in version 17 (Release-17, Rel-17):

In Rel-17 ultra-reliable and low latency communications (Ultra-reliable and Low Latency Communications, URLLC), gNB and UE can respectively adopt different FFP periods and/or different FFP start positions. If the UE wants to perform uplink transmission, it can perform LBT during the idle period (idle period) of its own FFP, and if it detects that the channel is empty, it will initiate COT for uplink transmission by itself. At the same time, the COT of the UE can also be shared with the base station, and the base station can send downlink signals, such as control signals, broadcast signals, and data, to the UE that initiates the COT or other UEs within the shared COT. Here, the COT of the UE is the COT initiated by the UE, that is, the UE-initiated COT.

In Rel-17, since UE can either initiate COT or share gNB-initiated COT, UE needs to reach an agreement with gNB on the channel access mechanism for CG UL transmission. There are two selection mechanisms in the existing discussion:

In semi-static channel access mode, when the UE can operate as a UE-initiated COT, choose one of the following alternatives to determine the configuration grants that are aligned with the UE FFP boundary and end before the idle period for that UE FFP Whether the uplink transmission is based on the COT initiated by the UE or the COT initiated by the shared gNB:

Option a: If the transmission is restricted within a gNB FFP before the idle period of the gNB FFP, and the UE has determined that the gNB initiated the COT, the UE assumes that the configured authorized uplink transmission corresponds to the gNB initiated COT. Otherwise, the UE assumes that the configured authorized uplink transmission corresponds to the COT initiated by the UE

Alternative solution b: The UE assumes that the configured uplink transmission authorization corresponds to the COT initiated by the UE.

When the CG uplink transmission (UL transmission) is aligned with the UE FFP boundary, for option a, when the CG uplink transmission is limited within the gNB's FFP and ends before the gNB's idle period, the UE shares the gNB-initiated COT. In other cases, UE uses UE-initiated COT for CG uplink transmission. For option b, the UE assumes that the CG uplink transmission should use UE-initiated COT transmission. For option a, since the CG uplink transmission is limited within the FFP of the gNB, it is not clarified whether the CG uplink transmission is the first available CG uplink transmission burst (burst), or all possible CG Uplink transmission burst. If it is the first CG UL uplink transmission burst that can be used, the problem in Figure 1 will occur.

Referring to FIG. 3 , it shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal 31 and a network side device 32 . Wherein, the terminal 31 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 31 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side equipment, wearable devices include: smart watches, bracelets, earphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 31 .

The network side device 32 may be a base station or a core network, where a base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (Base TransceiverStation, BTS), a radio base station, a radio transceiver, a basic service set (BasicServiceSet, BSS), extended service set (ExtendedServiceSet, ESS), B node, evolved type B node (eNB), home node B, home evolved type B node, wireless local area network (Wireless Local Area Network, WLAN) access point, WiFi node, transmitting and receiving point (Transmitting Receiving Point, TRP), wireless access network node or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to the specified technical vocabulary, what needs to be explained Yes, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

Referring to FIG. 4 and FIG. 5 , the embodiment of the present application provides a transmission method, which may be executed by a terminal, and the specific steps include: step 401 and step 402 .

Step 401: The terminal determines whether to perform uplink transmission (UL transmission) during the first channel occupancy time or whether the second channel occupancy time;

Step 402: The terminal sends indication information to the network side device, the indication information indicates whether the terminal performs uplink transmission during the first channel occupation time, or the indication information indicates whether the terminal performs uplink transmission during the second channel occupation time. Channel occupation time for uplink transmission;

Wherein, the first channel occupancy time is the channel occupancy time initiated by the terminal, the first channel occupancy time can be represented by UE-initiated COT (UE-initiated COT), and the second channel occupancy time is initiated by the network side device The channel occupancy time, the second channel occupancy time can also be represented by a base station initiated COT (gNB-initiated COT).

In an implementation manner of the present application, the step of the terminal determining whether to perform uplink transmission during the first channel occupancy time includes:

When the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is configured with first information, the terminal determines whether to perform uplink transmission during the first channel occupation time;

Wherein, the first information includes: related information for the terminal to independently select the first channel occupation time, such as the configuration authorization retransmission timer (cg-RetransmissionTimer-r16) of version 16 or the configuration authorization uplink control information (CG-Uplink Control Information, CG-UCI) at least one item.

Exemplarily, when the UL transmission is aligned with the UE FFP boundary, and the UE is configured with relevant parameters/modes of the UE autonomously selecting initiated COT, such as: at least one of cg-RetransmissionTimer-r16 or CG-UCI, the UE You can decide whether to perform UL transmission in UE-initiated COT.

When the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is not configured with the first information, the terminal determines to perform uplink transmission during the first channel occupancy time;

Wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupation time.

Exemplarily, when the UL transmission is aligned with the UE FFP boundary, and the UE is not configured with relevant parameters/modes for the UE to independently select initiated COT, such as: at least one of cg-RetransmissionTimer-r16 or CG-UCI, the UE can Perform UL transmission in UE-initiated COT.

When the uplink transmission is aligned with the boundary of the fixed frame period of the terminal, the terminal is not configured with the first information, and the uplink transmission is within the fixed frame period of the network side device and ends at the idle period (idle period) of the fixed frame period of the network side device period), the terminal determines to perform uplink transmission during the second channel occupancy time;

Exemplarily, when the UL transmission is aligned with the UE FFP boundary, and the UE has not configured the relevant parameters/modes of the UE to independently select the initiated COT, such as: at least one of cg-RetransmissionTimer-r16 or CG-UCI, if the UL If the transmission is in the FFP of the network side device and ends before the idle period of the gNB FFP, the UE performs UL transmission in the shared gNB-initiated COT.

In one embodiment of the present application, the instruction information includes one or more of the following:

(1) the first field in the uplink control information, the first field indicates that the network side equipment shares the relevant information of the first channel occupancy time;

For example, if the first field indicates that the network-side device shares the first channel occupation time, it means that the terminal performs uplink transmission during the first channel occupation time; if the first field indicates that the network-side device does not share the first channel occupation time, it means that the terminal does not share the first channel occupation time. One channel occupies time for uplink transmission.

The first field may also be represented by a COT sharing information field (COT sharing information field). Exemplarily, adding a configured combination (configured combination) to the configured authorized channel occupancy time sharing list (cg-COT-SharingList) indicates that the terminal does not perform UL transmission in the UE-initiated COT. When the COT sharing information (COT sharing information) indicates the configuration combination, it means that the terminal does not perform UL transmission in the UE-initiated COT.

(2) The second field in the uplink control information, the second field indicates whether the terminal performs uplink transmission during the first channel occupation time, or indicates whether the terminal performs uplink transmission during the second channel occupation time ;

For example, the second field includes 1-bit indication information, a value of "1" indicates that the terminal performs uplink transmission during the first channel occupation time, and a value of "0" indicates that the terminal does not perform uplink transmission during the first channel occupation time The transmission or the terminal performs uplink transmission during the second channel occupation time, or the value "1" indicates that the terminal performs uplink transmission during the second channel occupation time, and the value "0" indicates that the terminal does not perform uplink transmission during the second channel occupation time. The second channel occupies time to perform uplink transmission or the terminal performs uplink transmission during the first channel occupation time.

(3) Reference signal sequence (Reference Signal sequence, RS sequence), the reference signal sequence indicates whether the terminal performs uplink transmission during the occupation time of the first channel, or indicates whether the terminal occupies the second channel Time for uplink transmission;

Exemplarily, reference signal sequence 1 indicates that the terminal performs uplink transmission during the first channel occupation time, and reference signal sequence 2 indicates that the terminal performs uplink transmission during the second channel occupation time.

For example, the reference signal sequence may be a demodulation reference signal (Demodulation Reference Signal, DMRS), or an uplink sounding reference signal (Sounding Reference Signal, SRS).

(4) A preamble for random access, where the preamble indicates whether the terminal performs uplink transmission during the first channel occupation time, or indicates whether the terminal performs uplink transmission during the second channel occupation time ;

Exemplarily, preamble 1 indicates that the terminal performs uplink transmission during the first channel occupation time, and preamble 2 indicates that the terminal performs uplink transmission during the second channel occupation time.

(5) Dedicated uplink signaling.

Exemplarily, the terminal indicates to the network side device whether to perform UL transmission in the UE-initiated COT through dedicated uplink signaling. The dedicated uplink signaling may be a 1-bit dedicated signaling carried on the PUCCH. A value of "1" means that the terminal performs uplink transmission during the occupied time of the first channel, and a value of "0" means The terminal does not perform uplink transmission during the first channel occupation time or the terminal performs uplink transmission during the second channel occupation time, or the value "1" indicates that the terminal performs uplink transmission during the second channel occupation time, which is A value of "0" indicates that the terminal does not perform uplink transmission during the second channel occupation time or the terminal performs uplink transmission during the first channel occupation time.

In one embodiment of the present application, the uplink transmission includes one or more of the following:

(1) Configure authorized uplink transmission;

(2) Dynamic Grant (DG) uplink transmission;

(3) SRS;

(4) Physical Random Access Channel (Physical Random Access Channel, PRACH).

In an implementation manner of the present application, the configuration of the first information is as follows:

(1) Configure (per UE) for each terminal;

(2) Configure (per serving cell/cell group) for each serving cell or each cell group;

(3) Authorize configuration for each configuration (per configured grant);

(4) Configuration grant, dynamic grant, SRS, physical uplink control channel (Physical Uplink Control Channel, PUCCH) or PRACH configuration respectively.

In the embodiment of the present application, the terminal can independently decide whether to perform uplink transmission during the first channel occupation time, or decide whether to perform uplink transmission during the second channel occupation time, so as to improve resource utilization.

The implementation manner of the present application will be described below in combination with Embodiment 1 to Embodiment 4.

Embodiment one

When the UL transmission is aligned with the UE FFP boundary, if the UE is configured with at least one of cg-RetransmissionTimer-r16 or CG-UCI, the UE can choose to perform UL transmission in the UE-initiated COT or in the gNB-initiated COT according to the UL transmission UL transmission in.

(1) If the current UL transmission limit (confine) is within the FFP of the base station (next generation node B, gNB), and no new UL transmission is expected to exceed the end time of the gNB FFP, the UE is in the gNB-initiated COT Conduct UL transmission.

Among them, the new UL transmission is not continuous with the current UL transmission, and arrives after the current UL transmission.

(2) If the current UL transmission confine is within the FFP of the gNB, and a new UL transmission is expected to exceed the end time of the gNB FFP, the UE performs UL transmission in the UE-initiated COT.

(3) UE always chooses to perform UL transmission in UE-initiated COT.

(4) UE always chooses to perform UL transmission in gNB-initiated COT.

Embodiment two:

The UE can indicate to the gNB whether to perform UL transmission in the UE-initiated COT through uplink signaling.

(1) When CG-UCI is configured, UE indicates to gNB whether to perform UL transmission in UE-initiated COT through CG-UCI.

a. Indicate to gNB through COT sharing information filed in CG-UCI.

i. When the COT sharing information filed indicates that the gNB can share the COT (share COT), for example, indicating the starting position and length of the gNB's downlink transmission, it means that the UE performs UL transmission in the UE-initiated COT.

ii. When the COT sharing information filed indicates that the gNB does not share (no sharing), it means that the UE has not performed UL transmission in the UE-initiated COT.

iii. Add a configured combination in "cg-COT-SharingList" to indicate that the UE does not transmit UL transmission in the UE-initiated COT. When the COT sharing information indicates the configuration combination, it means that the UE does not perform UL transmission in the UE-initiated COT.

b. Indicate to gNB whether to perform UL transmission in UE-initiated COT through the dedicated field in CG-UCI.

i. This dedicated field can be represented by 1 bit, and the value of 1 or 0 indicates that the UE has or has not performed UL transmission in the UE-initiated COT.

(2) UE indicates whether to perform UL transmission in UE-initiated COT through RS sequence (such as DMRS, SRS), including the following two methods:

a. Select a specific RS sequence, where RS sequence 1: indicates that the UE shares the gNB-initiated COT; RS Sequence2: indicates that the UE adopts the UE-initiated COT.

b. Divide the RS sequence into at least two groups. Any RS sequence belonging to group 1 indicates that the UE shares the gNB-initiated COT, and any RS sequence belonging to group 2 indicates that the UE adopts the UE-initiated COT.

(3) The UE indicates whether to perform UL transmission in the UE-initiated COT through the preamble (Preamble) (for PRACH), including the following two methods:

a. Select a specific Preamble, where Preamble 1: indicates that UE shares gNB-initiated COT; Preamble 2: indicates that UE adopts UE-initiated COT

b. Divide the Preamble into at least two groups. Any Preamble belonging to group 1 indicates that UE shares gNB-initiated COT, and any Preamble belonging to group 2 indicates that UE adopts UE-initiated COT

(4) The UE indicates to the gNB whether to perform UL transmission in the UE-initiated COT through dedicated uplink signaling. It can be a 1-bit dedicated signaling, which can be carried in the PUCCH.

It should be noted that: In this article, indicating whether the UE performs UL transmission in the UE-initiated COT is equivalent to indicating whether the UE initiated the COT, and is also equivalent to whether the UE shares the COT of the gNB. That is, the UE performing UL transmission in the UE-initiated COT is equivalent to the UE's own initiate COT, which is equivalent to the UE not sharing the gNB-initiated COT. Conversely, if the UE does not perform UL transmission in the UE-initiated COT, it means that the UE does not have its own initiate COT, and it means that the UE shares the gNB-initiated COT.

Embodiment three:

When the UL transmission is aligned with the UE FFP boundary, and the UE is not configured with at least one of cg-RetransmissionTimer-r16 or CG-UCI, the UE transmits the UL transmission in the UE-initiated COT. That is to say, as long as any one of the above two parameters does not exist, the UE initiates a COT by itself for uplink transmission. At this time, the UE does not need to indicate to the gNB whether it can share the COT, and the gNB determines whether the UE initiates the COT by itself according to whether at least one of RetransmissionTimer-r16 and CG-UCI is configured at the same time. If UE initiates COT by itself, gNB can share UE-initiated COT by default.

Embodiment four:

When the UL transmission is aligned with the UE FFP boundary, and the UE is not configured with at least one of cg-RetransmissionTimer-r16 or CG-UCI, if the UL transmission is within the gNB FFP and ends before the idle period of the gNB FFP, the UE shares The gNB-initiated COT performs UL transmission. At this time, the COT sharing information field in the CG-UCI needs to indicate that the gNB is not sharing (“no sharing”), indicating that the UE has not performed UL transmission in the UE-initiated COT, and the gNB cannot share the UE-initiated COT at this time.

Referring to FIG. 6, an embodiment of the present application provides a transmission device, which is applied to a terminal, and the device 600 includes:

A determining module 601, configured to determine whether to perform uplink transmission during the first channel occupation time or whether to perform uplink transmission during the second channel occupation time;

A sending module 602, configured to send indication information to a network side device, the indication information indicating whether the terminal performs uplink transmission during the first channel occupancy time, or the indication information indicating whether the terminal is performing uplink transmission during the second channel occupation time. The channel occupies time for uplink transmission.

Wherein, the first channel occupancy time is the channel occupancy time initiated by the terminal, the first channel occupancy time can be represented by UE-initiated COT, the second channel occupancy time is the channel occupancy time initiated by the network side device, the first The occupied time of the two channels can also be represented by share gNB-initiated COT.

In one embodiment of the present application, the determining module 601 is further configured to: determine whether the uplink transmission is aligned with the fixed frame period boundary of the terminal and the terminal is configured with first information The first channel occupies time for uplink transmission;

In an implementation manner of the present application, the determining module 601 is further configured to:

When the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is not configured with the first information, determine to perform the uplink transmission at the first channel occupation time;

In one embodiment of the present application, the determining module 601 is further configured to: align the uplink transmission with the fixed frame period boundary of the terminal, the terminal is not configured with the first information, and the uplink transmission is on the network side If the device is within the fixed frame period and ends before the idle period of the network side device's fixed frame period, determine to perform uplink transmission during the second channel occupation time;

(3) a reference signal sequence, where the reference signal sequence indicates whether the terminal performs uplink transmission during the first channel occupation time, or indicates whether the terminal performs uplink transmission during the second channel occupation time;

(5) Dedicated uplink signaling.

(1) Configure authorized uplink transmission;

(2) Dynamically authorize uplink transmission;

(3) uplink sounding reference signal;

(4) Physical random access channel.

(1) Configure for each terminal;

(2) Configure for each serving cell or each cell group;

(3) Authorize configuration for each configuration;

(4) Configuration grant, dynamic grant, uplink sounding reference signal, physical uplink control channel or physical random access channel configuration respectively.

The device provided by the embodiment of the present application can realize each process realized by the method embodiment shown in FIG. 4 and achieve the same technical effect. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface, and the processor is used to determine whether to perform uplink transmission during the first channel occupation time or whether to perform uplink transmission during the second channel occupation time; wherein, the first channel occupation time The time is the channel occupation time initiated by the terminal, and the second channel occupation time is the channel occupation time initiated by the network side device. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.

Specifically, FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application. The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, and a display unit. 706, at least some components in the user input unit 707, the interface unit 708, the memory 709, and the processor 710, etc.

Those skilled in the art can understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 710 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072 . The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 701 receives the downlink data from the network side device, and processes it to the processor 710; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 can be used to store software programs or instructions as well as various data. The memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required by a function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 709 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .

In one embodiment of the present application, the processor 710 is configured to determine whether to perform uplink transmission at the first channel occupation time or whether to perform uplink transmission at the second channel occupation time; wherein, the first channel occupation time is the channel occupation initiated by the terminal time, the second channel occupation time is the channel occupation time initiated by the terminal sharing network side device.

In an implementation manner of the present application, the processor 710 is further configured to determine whether the first channel Occupying time for uplink transmission; wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupancy time.

In an implementation manner of the present application, the processor 710 is further configured to determine that the first channel occupation time is in the condition that the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is not configured with the first information. for uplink transmission.

In an embodiment of the present application, the processor 710 is further configured to align the uplink transmission with the fixed frame period boundary of the terminal, the terminal is not configured with the first information, and the uplink transmission is in a fixed frame period of the network side device If the period is within the period and ends before the idle period of the fixed frame period of the network side device, the terminal determines to perform uplink transmission during the second channel occupation time.

In one embodiment of the present application, the radio frequency unit 701 is configured to send indication information to the network side device, the indication information indicating whether the terminal performs uplink transmission during the first channel occupation time, or the indication information indicating whether the terminal Uplink transmission is performed during the second channel occupation time.

The terminal provided by the embodiment of the present application can realize each process realized by the method embodiment shown in FIG. 4 and achieve the same technical effect. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the processing as shown in Figure 4 steps of the method.

The embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by the processor, the various processes of the above method embodiment shown in FIG. 4 are implemented, and can To achieve the same technical effect, in order to avoid repetition, no more details are given here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application also provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method shown in Figure 3 above. Each process of the example, and can achieve the same technical effect, in order to avoid repetition, will not repeat them here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

An embodiment of the present application provides a terminal configured to execute the processes in the above method embodiments, and achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method of transmission comprising:

The terminal determines whether to perform uplink transmission during the first channel occupation time or whether to perform uplink transmission during the second channel occupation time;

The terminal sends indication information to the network side device, where the indication information is used to indicate whether the terminal performs uplink transmission during the first channel occupation time, or the indication information is used to indicate whether the terminal performs uplink transmission during the first channel occupation time. Two channels occupy time for uplink transmission;

Wherein, the first channel occupation time is the channel occupation time initiated by the terminal, and the second channel occupation time is the channel occupation time initiated by the network side device.
The method according to claim 1, wherein the step of the terminal determining whether to perform uplink transmission during the first channel occupancy time includes:

When the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is configured with first information, the terminal determines whether to perform uplink transmission during the first channel occupation time;

Wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupation time.
The method according to claim 1, wherein the step of the terminal determining whether to perform uplink transmission during the first channel occupancy time includes:

If the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is not configured with the first information, the terminal determines to perform uplink transmission during the first channel occupation time;

Wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupation time.
The method according to claim 1, wherein the step of the terminal determining whether to perform uplink transmission during the first channel occupancy time includes:

When the uplink transmission is aligned with the boundary of the fixed frame period of the terminal, the terminal is not configured with the first information, and the uplink transmission is within the fixed frame period of the network side device and ends before the idle period of the fixed frame period of the network side device In this case, the terminal determines to perform uplink transmission during the second channel occupancy time;

Wherein, the first information includes: relevant information for the terminal to independently select the first channel occupation time.
The method according to claim 1, wherein the indication information includes one or more of the following:

The first field in the uplink control information, the first field instructs the network side device to share the relevant information of the first channel occupancy time;

The second field in the uplink control information, the second field indicates whether the terminal performs uplink transmission during the first channel occupation time, or indicates whether the terminal performs uplink transmission during the second channel occupation time;

a reference signal sequence, where the reference signal sequence indicates whether the terminal performs uplink transmission during the first channel occupation time, or indicates whether the terminal performs uplink transmission during the second channel occupation time;

A preamble for random access, where the preamble indicates whether the terminal performs uplink transmission during the first channel occupation time, or indicates whether the terminal performs uplink transmission during the second channel occupation time;

Dedicated uplink signaling.
The method according to claim 1, wherein the uplink transmission includes one or more of the following:

Configure authorized uplink transmission;

Dynamically authorize uplink transmission;

uplink sounding reference signal;

Physical random access channel.
The method according to claim 2 or 3 or 4, wherein the configuration of the first information is as follows:

Configured for each terminal;

Configured for each serving cell or each cell group;

Authorize configuration for each configuration;

They are configuration grant, dynamic grant, uplink sounding reference signal, physical uplink control channel or physical random access channel configuration respectively.
A transmission device comprising:

A determining module, configured to determine whether to perform uplink transmission during the first channel occupation time or whether to perform uplink transmission during the second channel occupation time;

A sending module, configured to send indication information to a network side device, the indication information indicating whether the terminal performs uplink transmission during the occupation time of the first channel, or the indication information indicating whether the terminal is in the second channel Take up time for uplink transmission;

Wherein, the first channel occupation time is the channel occupation time initiated by the terminal, and the second channel occupation time is the channel occupation time initiated by the network side device.
The device according to claim 8, wherein the determining module is further configured to:

When the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is configured with first information, determine whether to perform uplink transmission during the first channel occupation time;

Wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupation time.
The device according to claim 8, wherein the determining module is further configured to:

When the uplink transmission is aligned with the fixed frame period boundary of the terminal, and the terminal is not configured with the first information, determine to perform the uplink transmission at the first channel occupation time;

Wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupation time.
The device according to claim 8, wherein the determining module is further configured to:

When the uplink transmission is aligned with the boundary of the fixed frame period of the terminal, the terminal is not configured with the first information, and the uplink transmission is within the fixed frame period of the network side device and ends before the idle period of the fixed frame period of the network side device In this case, it is determined to perform uplink transmission during the second channel occupancy time;

Wherein, the first information includes: relevant information for the terminal to autonomously select the first channel occupation time.
A terminal, comprising: a processor, a memory, and a program stored on the memory and operable on the processor, wherein, when the program is executed by the processor, any one of claims 1 to 7 is implemented. A step of the described method.
A readable storage medium storing programs or instructions on the readable storage medium, wherein the steps of the method according to any one of claims 1 to 7 are implemented when the program or instructions are executed by a processor.
A chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method according to any one of claims 1 to 7 step.
A computer program/program product, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement any one of claims 1 to 7 steps of the method described above.
A terminal configured to execute the steps of the method according to any one of claims 1-7.